Merge pull request #2437 from ZhuHongen/master

#5 #899 第五次实验
hzuapps · Jun 2, 2018 · 2b92859 · 2b92859
2 parents 51b2b4d + f2bbbed
commit 2b92859
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diff --git a/soft1614080902146/app/src/main/java/com/example/hzu/myapplication/Add.java b/soft1614080902146/app/src/main/java/com/example/hzu/myapplication/Add.java
@@ -0,0 +1,88 @@
+package com.example.administrator.myapplication;
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.os.Handler;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+public class Add extends AppCompatActivity {
+
+    private MyDatabaseHelper dbHelper;
+
+    String str1,str2;
+
+    public static final String CREATE_INFO = "create table textinfo(" +
+            //primary key 将id列设为主键    autoincrement表示id列是自增长的
+            "id integer primary key autoincrement," +
+            "name text," +
+            "description text)";
+    @Override
+
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_add);
+
+
+        EditText text_nameinfo=(EditText)findViewById(R.id.nameText);
+
+        text_nameinfo.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                str1 = s.toString();
+                Log.d("EditText",str1);
+            }
+        });
+
+        EditText text_description=(EditText)findViewById(R.id.descriptionText);
+        text_description.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                str2=s.toString();
+                Log.d("EditText",str2);
+            }
+        });
+        //数据库建立
+        dbHelper = new MyDatabaseHelper(this,"cloth",null,1);
+        dbHelper.getWritableDatabase();
+        //上传确认
+        Button btn1 =(Button)findViewById(R.id.confirmUpload);
+        btn1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                SQLiteDatabase db=dbHelper.getWritableDatabase();
+                //db.execSQL(CREATE_INFO);
+                //ContentValues values=new ContentValues();
+                db.execSQL("insert into textinfo(name,description) values(?,?)",
+                        new Object[]{str1,str2});
+            }
+        });
+    }
+}
diff --git a/soft1614080902146/app/src/main/java/com/example/hzu/myapplication/MyDatabaseHelper.java b/soft1614080902146/app/src/main/java/com/example/hzu/myapplication/MyDatabaseHelper.java
@@ -0,0 +1,38 @@
+package com.example.administrator.myapplication;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.widget.Toast;
+
+public class MyDatabaseHelper extends SQLiteOpenHelper {
+
+    public static final String CREATE_INFO = "create table textinfo(" +
+            //primary key 将id列设为主键    autoincrement表示id列是自增长的
+            "id integer primary key autoincrement," +
+            "name text," +
+            "description text)";
+
+
+
+    private Context mContext;
+
+    //构造方法：第一个参数Context，第二个参数数据库名，第三个参数cursor允许我们在查询数据的时候返回一个自定义的光标位置，一般传入的都是null，第四个参数表示目前库的版本号（用于对库进行升级）
+    public  MyDatabaseHelper(Context context,String name,SQLiteDatabase.CursorFactory factory , int version){
+        super(context,name ,factory,version);
+        mContext = context;
+    }
+
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        //调用SQLiteDatabase中的execSQL（）执行建表语句。
+        db.execSQL(CREATE_INFO);
+        //创建成功
+        Toast.makeText(mContext, "Create succeeded", Toast.LENGTH_SHORT).show();
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+
+    }
+}
diff --git a/soft1614080902146/app/src/main/java/com/example/hzu/myapplication/Search.java b/soft1614080902146/app/src/main/java/com/example/hzu/myapplication/Search.java
@@ -0,0 +1,77 @@
+package com.example.administrator.myapplication;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+public class Search extends AppCompatActivity {
+
+    MyDatabaseHelper dbHelper=new MyDatabaseHelper(Search.this,"cloth",null,1);
+
+    String str;
+    String table =  "textinfo" ;
+    String[] columns = new  String[] {"name","description"};
+    String selection = "name=?" ;
+    String groupBy = null ;
+    String having = null ;
+    String orderBy = null ;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_search);
+
+        EditText SearchText=(EditText)findViewById(R.id.SearchText);
+        SearchText.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                str=s.toString();
+            }
+        });
+
+        Button btn1=(Button)findViewById(R.id.ShowAll);
+        btn1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                SQLiteDatabase db = dbHelper.getWritableDatabase();
+                //指明去查询textinfo表。
+                Cursor cursor = db.query(table,columns,selection,new String[]{str},groupBy,having,orderBy);
+                //Cursor cursor = db.query(table,columns,null,null,groupBy,having,orderBy);
+                //调用moveToFirst()将数据指针移动到第一行的位置。
+                if (cursor.moveToFirst()){
+                    do {
+                        //然后通过Cursor的getColumnIndex()获取某一列中所对应的位置的索引
+                        String name=cursor.getString(cursor.getColumnIndex("name"));
+                        String description = cursor.getString(cursor.getColumnIndex("description"));
+                        Log.d("MainActivity","name is "+name);
+                        Log.d("MainActivity","description is "+description);
+                        //Toast.makeText(Search.this, name+description, Toast.LENGTH_LONG).show();
+                        Intent intent=new Intent(Search.this,ShowSearch.class);
+                        intent.putExtra("name",name);
+                        intent.putExtra("description",description);
+                        startActivity(intent);
+                    }while(cursor.moveToNext());
+                }
+                cursor.close();
+            }
+        });
+    }
+}
diff --git a/soft1614080902146/app/src/main/java/com/example/hzu/myapplication/ShowSearch.java b/soft1614080902146/app/src/main/java/com/example/hzu/myapplication/ShowSearch.java
@@ -0,0 +1,25 @@
+package com.example.administrator.myapplication;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.widget.TextView;
+
+public class ShowSearch extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_show_search);
+
+        Intent intent=getIntent();
+        String string1=intent.getStringExtra("name");
+        String string2=intent.getStringExtra("description");
+
+        TextView textName=(TextView)findViewById(R.id.nameShow);
+        textName.setText(string1);
+        TextView textDescription=(TextView)findViewById(R.id.descriptionShow);
+        textDescription.setText(string2);
+    }
+}
diff --git a/soft1614080902146/app/src/main/res/layout/activity_add.xml b/soft1614080902146/app/src/main/res/layout/activity_add.xml
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_weight="3"
+    android:orientation="vertical"
+    tools:context=".Add">
+263/】
+    <LinearLayout
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:layout_weight="1"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/textView5"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="新闻标题" />
+
+        <EditText
+            android:id="@+id/nameText"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:ems="10"
+            android:inputType="textPersonName" />
+
+        <TextView
+            android:id="@+id/textView6"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="新闻内容" />
+
+        <EditText
+            android:id="@+id/descriptionText"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:ems="10"
+            android:inputType="textMultiLine" />
+
+        <TextView
+            android:id="@+id/textView7"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="图片上传" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:layout_weight="1"
+        android:orientation="vertical">
+
+        <ImageView
+            android:id="@+id/upload"
+            android:layout_width="100dp"
+            android:layout_height="100dp"
+            android:layout_gravity="center"
+            app:srcCompat="@drawable/upload" />
+
+
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:layout_weight="1"
+        android:orientation="vertical">
+        <Button
+            android:id="@+id/confirmUpload"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:text="确认上传" />
+    </LinearLayout>
+</LinearLayout>
diff --git a/soft1614080902146/app/src/main/res/layout/activity_my_database_helper.xml b/soft1614080902146/app/src/main/res/layout/activity_my_database_helper.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MyDatabaseHelper">
+
+</android.support.constraint.ConstraintLayout>
diff --git a/soft1614080902146/app/src/main/res/layout/activity_search.xml b/soft1614080902146/app/src/main/res/layout/activity_search.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".Search">
+
+    <EditText
+        android:id="@+id/SearchText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentTop="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="162dp"
+        android:ems="10"
+        android:inputType="textPersonName" />
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentTop="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="230dp"
+        android:text="请输入关键词" />
+
+    <Button
+        android:id="@+id/ShowAll"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginBottom="50dp"
+        android:text="显示" />
+</RelativeLayout>